Mathematics, 02.12.2019 21:31 QANDA660
Evaluate the expression for the given values of the variables.
4(2m-n)-3(2m-n);
m=-15 n=-18
a. 3
b. -3
c. -12
d. 16
Answers: 2
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Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w
Answers: 1
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Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
Answers: 1
Evaluate the expression for the given values of the variables.
4(2m-n)-3(2m-n);
m=-15 n...
4(2m-n)-3(2m-n);
m=-15 n...
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